/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe011_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-25 14:52:53,674 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-25 14:52:53,676 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-25 14:52:53,710 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-25 14:52:53,710 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-25 14:52:53,714 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-25 14:52:53,717 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-25 14:52:53,723 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-25 14:52:53,725 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-25 14:52:53,731 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-25 14:52:53,742 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-25 14:52:53,743 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-25 14:52:53,744 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-25 14:52:53,746 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-25 14:52:53,747 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-25 14:52:53,749 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-25 14:52:53,752 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-25 14:52:53,753 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-25 14:52:53,755 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-25 14:52:53,764 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-25 14:52:53,766 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-25 14:52:53,767 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-25 14:52:53,768 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-25 14:52:53,770 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-25 14:52:53,773 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-25 14:52:53,781 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-25 14:52:53,782 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-25 14:52:53,782 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-25 14:52:53,783 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf [2021-03-25 14:52:53,822 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-25 14:52:53,822 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-25 14:52:53,825 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-25 14:52:53,825 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-25 14:52:53,825 INFO L138 SettingsManager]: * Use SBE=true [2021-03-25 14:52:53,825 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-25 14:52:53,826 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-25 14:52:53,826 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-25 14:52:53,826 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-25 14:52:53,826 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-25 14:52:53,827 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-25 14:52:53,827 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-25 14:52:53,827 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-25 14:52:53,827 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-25 14:52:53,827 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-25 14:52:53,827 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-25 14:52:53,828 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-25 14:52:53,828 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-25 14:52:53,828 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-25 14:52:53,828 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-25 14:52:53,828 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-25 14:52:53,828 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 14:52:53,828 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-25 14:52:53,829 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-25 14:52:53,829 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-25 14:52:53,829 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-25 14:52:53,829 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-25 14:52:53,829 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-25 14:52:53,829 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-25 14:52:53,829 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-25 14:52:54,124 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-25 14:52:54,146 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-25 14:52:54,148 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-25 14:52:54,151 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-25 14:52:54,156 INFO L275 PluginConnector]: CDTParser initialized [2021-03-25 14:52:54,157 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe011_tso.oepc.i [2021-03-25 14:52:54,213 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60bc7018c/946cfb63b26d4443b0a59bfea961bd73/FLAGfd587dfec [2021-03-25 14:52:54,698 INFO L306 CDTParser]: Found 1 translation units. [2021-03-25 14:52:54,698 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe011_tso.oepc.i [2021-03-25 14:52:54,715 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60bc7018c/946cfb63b26d4443b0a59bfea961bd73/FLAGfd587dfec [2021-03-25 14:52:55,046 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60bc7018c/946cfb63b26d4443b0a59bfea961bd73 [2021-03-25 14:52:55,053 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-25 14:52:55,055 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-25 14:52:55,059 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-25 14:52:55,059 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-25 14:52:55,062 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-25 14:52:55,063 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 02:52:55" (1/1) ... [2021-03-25 14:52:55,067 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a290976 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:52:55, skipping insertion in model container [2021-03-25 14:52:55,068 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 02:52:55" (1/1) ... [2021-03-25 14:52:55,074 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-25 14:52:55,124 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-25 14:52:55,235 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe011_tso.oepc.i[950,963] [2021-03-25 14:52:55,398 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 14:52:55,405 INFO L203 MainTranslator]: Completed pre-run [2021-03-25 14:52:55,416 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe011_tso.oepc.i[950,963] [2021-03-25 14:52:55,467 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 14:52:55,536 INFO L208 MainTranslator]: Completed translation [2021-03-25 14:52:55,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:52:55 WrapperNode [2021-03-25 14:52:55,537 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-25 14:52:55,539 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-25 14:52:55,539 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-25 14:52:55,540 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-25 14:52:55,546 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:52:55" (1/1) ... [2021-03-25 14:52:55,581 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:52:55" (1/1) ... [2021-03-25 14:52:55,605 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-25 14:52:55,606 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-25 14:52:55,606 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-25 14:52:55,607 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-25 14:52:55,614 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:52:55" (1/1) ... [2021-03-25 14:52:55,614 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:52:55" (1/1) ... [2021-03-25 14:52:55,625 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:52:55" (1/1) ... [2021-03-25 14:52:55,626 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:52:55" (1/1) ... [2021-03-25 14:52:55,630 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:52:55" (1/1) ... [2021-03-25 14:52:55,631 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:52:55" (1/1) ... [2021-03-25 14:52:55,632 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:52:55" (1/1) ... [2021-03-25 14:52:55,637 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-25 14:52:55,637 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-25 14:52:55,637 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-25 14:52:55,638 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-25 14:52:55,638 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:52:55" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 14:52:55,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-25 14:52:55,691 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-25 14:52:55,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-25 14:52:55,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-25 14:52:55,691 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-25 14:52:55,691 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-25 14:52:55,691 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-25 14:52:55,691 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-25 14:52:55,691 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-25 14:52:55,691 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-25 14:52:55,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-25 14:52:55,692 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-25 14:52:55,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-25 14:52:55,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-25 14:52:55,693 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-25 14:52:56,023 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-25 14:52:56,024 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-25 14:52:56,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 02:52:56 BoogieIcfgContainer [2021-03-25 14:52:56,025 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-25 14:52:56,027 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-25 14:52:56,027 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-25 14:52:56,030 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-25 14:52:56,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.03 02:52:55" (1/3) ... [2021-03-25 14:52:56,031 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f7f6f68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 02:52:56, skipping insertion in model container [2021-03-25 14:52:56,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:52:55" (2/3) ... [2021-03-25 14:52:56,032 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f7f6f68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 02:52:56, skipping insertion in model container [2021-03-25 14:52:56,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 02:52:56" (3/3) ... [2021-03-25 14:52:56,033 INFO L111 eAbstractionObserver]: Analyzing ICFG safe011_tso.oepc.i [2021-03-25 14:52:56,038 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-25 14:52:56,041 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-25 14:52:56,042 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-25 14:52:56,077 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:52:56,077 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:52:56,077 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:52:56,078 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:52:56,078 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:52:56,078 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:52:56,078 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:52:56,078 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:52:56,078 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:52:56,079 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:52:56,079 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:52:56,079 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:52:56,080 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:52:56,080 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:52:56,080 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:52:56,080 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:52:56,080 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:52:56,080 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:52:56,080 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:52:56,080 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:52:56,081 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:52:56,081 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:52:56,081 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:52:56,081 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:52:56,081 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:52:56,082 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:52:56,082 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:52:56,082 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:52:56,084 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:52:56,084 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:52:56,084 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:52:56,084 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:52:56,085 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:52:56,085 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:52:56,085 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:52:56,086 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:52:56,088 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:52:56,088 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:52:56,088 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:52:56,088 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:52:56,093 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:52:56,093 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:52:56,093 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:52:56,093 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:52:56,099 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:52:56,100 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:52:56,100 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:52:56,100 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:52:56,101 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-25 14:52:56,118 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-25 14:52:56,145 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 14:52:56,146 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 14:52:56,146 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 14:52:56,146 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 14:52:56,146 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 14:52:56,146 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 14:52:56,146 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 14:52:56,146 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 14:52:56,157 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 74 transitions, 163 flow [2021-03-25 14:52:56,207 INFO L129 PetriNetUnfolder]: 2/71 cut-off events. [2021-03-25 14:52:56,207 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 14:52:56,212 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 71 events. 2/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 57 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-03-25 14:52:56,213 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 74 transitions, 163 flow [2021-03-25 14:52:56,228 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 59 transitions, 127 flow [2021-03-25 14:52:56,229 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:52:56,239 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 59 transitions, 127 flow [2021-03-25 14:52:56,241 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 59 transitions, 127 flow [2021-03-25 14:52:56,242 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 59 transitions, 127 flow [2021-03-25 14:52:56,277 INFO L129 PetriNetUnfolder]: 1/59 cut-off events. [2021-03-25 14:52:56,278 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 14:52:56,278 INFO L84 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 59 events. 1/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-03-25 14:52:56,280 INFO L142 LiptonReduction]: Number of co-enabled transitions 864 [2021-03-25 14:52:57,276 INFO L154 LiptonReduction]: Checked pairs total: 996 [2021-03-25 14:52:57,276 INFO L156 LiptonReduction]: Total number of compositions: 37 [2021-03-25 14:52:57,279 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1051 [2021-03-25 14:52:57,292 INFO L129 PetriNetUnfolder]: 0/21 cut-off events. [2021-03-25 14:52:57,293 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 14:52:57,293 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:52:57,293 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:52:57,294 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:52:57,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:52:57,299 INFO L82 PathProgramCache]: Analyzing trace with hash -397059577, now seen corresponding path program 1 times [2021-03-25 14:52:57,306 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:52:57,307 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500306865] [2021-03-25 14:52:57,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:52:57,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:52:57,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:52:57,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 14:52:57,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:52:57,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:52:57,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:52:57,548 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500306865] [2021-03-25 14:52:57,548 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:52:57,548 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 14:52:57,549 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444691112] [2021-03-25 14:52:57,556 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 14:52:57,556 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:52:57,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 14:52:57,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 14:52:57,568 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 111 [2021-03-25 14:52:57,570 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 22 transitions, 53 flow. Second operand has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:52:57,570 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:52:57,570 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 111 [2021-03-25 14:52:57,571 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:52:57,586 INFO L129 PetriNetUnfolder]: 3/32 cut-off events. [2021-03-25 14:52:57,586 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 14:52:57,587 INFO L84 FinitePrefix]: Finished finitePrefix Result has 53 conditions, 32 events. 3/32 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 45 event pairs, 1 based on Foata normal form. 1/31 useless extension candidates. Maximal degree in co-relation 40. Up to 10 conditions per place. [2021-03-25 14:52:57,588 INFO L132 encePairwiseOnDemand]: 107/111 looper letters, 3 selfloop transitions, 3 changer transitions 0/24 dead transitions. [2021-03-25 14:52:57,588 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 24 transitions, 69 flow [2021-03-25 14:52:57,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 14:52:57,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 14:52:57,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 298 transitions. [2021-03-25 14:52:57,598 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8948948948948949 [2021-03-25 14:52:57,599 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 298 transitions. [2021-03-25 14:52:57,599 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 298 transitions. [2021-03-25 14:52:57,600 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:52:57,602 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 298 transitions. [2021-03-25 14:52:57,605 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:52:57,609 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 111.0) internal successors, (444), 4 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:52:57,610 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 111.0) internal successors, (444), 4 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:52:57,611 INFO L185 Difference]: Start difference. First operand has 32 places, 22 transitions, 53 flow. Second operand 3 states and 298 transitions. [2021-03-25 14:52:57,612 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 24 transitions, 69 flow [2021-03-25 14:52:57,614 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 24 transitions, 66 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-25 14:52:57,615 INFO L241 Difference]: Finished difference. Result has 32 places, 24 transitions, 69 flow [2021-03-25 14:52:57,616 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=69, PETRI_PLACES=32, PETRI_TRANSITIONS=24} [2021-03-25 14:52:57,617 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 0 predicate places. [2021-03-25 14:52:57,617 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:52:57,617 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 24 transitions, 69 flow [2021-03-25 14:52:57,618 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 24 transitions, 69 flow [2021-03-25 14:52:57,618 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 32 places, 24 transitions, 69 flow [2021-03-25 14:52:57,623 INFO L129 PetriNetUnfolder]: 3/32 cut-off events. [2021-03-25 14:52:57,623 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-25 14:52:57,623 INFO L84 FinitePrefix]: Finished finitePrefix Result has 53 conditions, 32 events. 3/32 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 45 event pairs, 1 based on Foata normal form. 0/30 useless extension candidates. Maximal degree in co-relation 42. Up to 10 conditions per place. [2021-03-25 14:52:57,624 INFO L142 LiptonReduction]: Number of co-enabled transitions 188 [2021-03-25 14:52:57,944 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-03-25 14:52:58,108 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-03-25 14:52:58,168 INFO L154 LiptonReduction]: Checked pairs total: 387 [2021-03-25 14:52:58,169 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-25 14:52:58,169 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 552 [2021-03-25 14:52:58,170 INFO L480 AbstractCegarLoop]: Abstraction has has 28 places, 20 transitions, 61 flow [2021-03-25 14:52:58,171 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:52:58,171 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:52:58,171 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:52:58,171 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-25 14:52:58,171 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:52:58,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:52:58,179 INFO L82 PathProgramCache]: Analyzing trace with hash 576054563, now seen corresponding path program 1 times [2021-03-25 14:52:58,179 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:52:58,179 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112950053] [2021-03-25 14:52:58,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:52:58,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:52:58,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:52:58,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 14:52:58,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:52:58,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:52:58,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:52:58,259 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112950053] [2021-03-25 14:52:58,259 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:52:58,259 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 14:52:58,259 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309588869] [2021-03-25 14:52:58,260 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 14:52:58,260 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:52:58,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 14:52:58,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 14:52:58,262 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 115 [2021-03-25 14:52:58,262 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 20 transitions, 61 flow. Second operand has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:52:58,262 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:52:58,262 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 115 [2021-03-25 14:52:58,262 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:52:58,278 INFO L129 PetriNetUnfolder]: 7/40 cut-off events. [2021-03-25 14:52:58,278 INFO L130 PetriNetUnfolder]: For 8/10 co-relation queries the response was YES. [2021-03-25 14:52:58,283 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 40 events. 7/40 cut-off events. For 8/10 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 105 event pairs, 3 based on Foata normal form. 1/37 useless extension candidates. Maximal degree in co-relation 70. Up to 15 conditions per place. [2021-03-25 14:52:58,284 INFO L132 encePairwiseOnDemand]: 111/115 looper letters, 3 selfloop transitions, 3 changer transitions 0/22 dead transitions. [2021-03-25 14:52:58,284 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 22 transitions, 77 flow [2021-03-25 14:52:58,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 14:52:58,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 14:52:58,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 304 transitions. [2021-03-25 14:52:58,287 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.881159420289855 [2021-03-25 14:52:58,287 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 304 transitions. [2021-03-25 14:52:58,287 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 304 transitions. [2021-03-25 14:52:58,287 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:52:58,287 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 304 transitions. [2021-03-25 14:52:58,289 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:52:58,290 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:52:58,290 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:52:58,290 INFO L185 Difference]: Start difference. First operand has 28 places, 20 transitions, 61 flow. Second operand 3 states and 304 transitions. [2021-03-25 14:52:58,290 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 22 transitions, 77 flow [2021-03-25 14:52:58,291 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 22 transitions, 74 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 14:52:58,292 INFO L241 Difference]: Finished difference. Result has 30 places, 22 transitions, 77 flow [2021-03-25 14:52:58,292 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=77, PETRI_PLACES=30, PETRI_TRANSITIONS=22} [2021-03-25 14:52:58,292 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, -2 predicate places. [2021-03-25 14:52:58,292 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:52:58,293 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 30 places, 22 transitions, 77 flow [2021-03-25 14:52:58,293 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 30 places, 22 transitions, 77 flow [2021-03-25 14:52:58,293 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 30 places, 22 transitions, 77 flow [2021-03-25 14:52:58,298 INFO L129 PetriNetUnfolder]: 7/40 cut-off events. [2021-03-25 14:52:58,298 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-03-25 14:52:58,299 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 40 events. 7/40 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 100 event pairs, 3 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 70. Up to 15 conditions per place. [2021-03-25 14:52:58,303 INFO L142 LiptonReduction]: Number of co-enabled transitions 154 [2021-03-25 14:52:58,459 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-03-25 14:52:58,701 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-03-25 14:52:58,783 INFO L154 LiptonReduction]: Checked pairs total: 142 [2021-03-25 14:52:58,783 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 14:52:58,783 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 491 [2021-03-25 14:52:58,784 INFO L480 AbstractCegarLoop]: Abstraction has has 29 places, 21 transitions, 75 flow [2021-03-25 14:52:58,784 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:52:58,784 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:52:58,784 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:52:58,785 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-25 14:52:58,785 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:52:58,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:52:58,785 INFO L82 PathProgramCache]: Analyzing trace with hash -1274371465, now seen corresponding path program 1 times [2021-03-25 14:52:58,785 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:52:58,786 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630866748] [2021-03-25 14:52:58,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:52:58,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:52:58,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:52:58,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 14:52:58,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:52:58,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:52:58,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:52:58,825 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630866748] [2021-03-25 14:52:58,825 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:52:58,825 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 14:52:58,826 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211880834] [2021-03-25 14:52:58,826 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 14:52:58,826 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:52:58,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 14:52:58,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 14:52:58,828 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 116 [2021-03-25 14:52:58,828 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 21 transitions, 75 flow. Second operand has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:52:58,828 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:52:58,828 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 116 [2021-03-25 14:52:58,828 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:52:58,842 INFO L129 PetriNetUnfolder]: 4/36 cut-off events. [2021-03-25 14:52:58,842 INFO L130 PetriNetUnfolder]: For 31/66 co-relation queries the response was YES. [2021-03-25 14:52:58,842 INFO L84 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 36 events. 4/36 cut-off events. For 31/66 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 97 event pairs, 2 based on Foata normal form. 4/38 useless extension candidates. Maximal degree in co-relation 72. Up to 13 conditions per place. [2021-03-25 14:52:58,843 INFO L132 encePairwiseOnDemand]: 113/116 looper letters, 3 selfloop transitions, 3 changer transitions 0/21 dead transitions. [2021-03-25 14:52:58,843 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 21 transitions, 87 flow [2021-03-25 14:52:58,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 14:52:58,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 14:52:58,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 303 transitions. [2021-03-25 14:52:58,845 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8706896551724138 [2021-03-25 14:52:58,845 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 303 transitions. [2021-03-25 14:52:58,845 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 303 transitions. [2021-03-25 14:52:58,846 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:52:58,846 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 303 transitions. [2021-03-25 14:52:58,847 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:52:58,848 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:52:58,848 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:52:58,848 INFO L185 Difference]: Start difference. First operand has 29 places, 21 transitions, 75 flow. Second operand 3 states and 303 transitions. [2021-03-25 14:52:58,849 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 21 transitions, 87 flow [2021-03-25 14:52:58,849 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 21 transitions, 84 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 14:52:58,850 INFO L241 Difference]: Finished difference. Result has 31 places, 21 transitions, 83 flow [2021-03-25 14:52:58,850 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=83, PETRI_PLACES=31, PETRI_TRANSITIONS=21} [2021-03-25 14:52:58,850 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, -1 predicate places. [2021-03-25 14:52:58,850 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:52:58,850 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 31 places, 21 transitions, 83 flow [2021-03-25 14:52:58,851 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 31 places, 21 transitions, 83 flow [2021-03-25 14:52:58,851 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 31 places, 21 transitions, 83 flow [2021-03-25 14:52:58,856 INFO L129 PetriNetUnfolder]: 4/36 cut-off events. [2021-03-25 14:52:58,856 INFO L130 PetriNetUnfolder]: For 33/45 co-relation queries the response was YES. [2021-03-25 14:52:58,856 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 36 events. 4/36 cut-off events. For 33/45 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 96 event pairs, 2 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 70. Up to 13 conditions per place. [2021-03-25 14:52:58,857 INFO L142 LiptonReduction]: Number of co-enabled transitions 154 [2021-03-25 14:52:58,859 INFO L154 LiptonReduction]: Checked pairs total: 95 [2021-03-25 14:52:58,859 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:52:58,859 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9 [2021-03-25 14:52:58,860 INFO L480 AbstractCegarLoop]: Abstraction has has 31 places, 21 transitions, 83 flow [2021-03-25 14:52:58,860 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:52:58,860 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:52:58,860 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:52:58,860 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-25 14:52:58,861 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:52:58,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:52:58,861 INFO L82 PathProgramCache]: Analyzing trace with hash -370221285, now seen corresponding path program 1 times [2021-03-25 14:52:58,861 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:52:58,861 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010013144] [2021-03-25 14:52:58,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:52:58,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:52:58,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:52:58,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:52:58,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:52:58,894 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010013144] [2021-03-25 14:52:58,895 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:52:58,895 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-25 14:52:58,895 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196140250] [2021-03-25 14:52:58,895 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 14:52:58,896 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:52:58,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 14:52:58,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 14:52:58,897 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 116 [2021-03-25 14:52:58,898 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 21 transitions, 83 flow. Second operand has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:52:58,898 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:52:58,898 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 116 [2021-03-25 14:52:58,898 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:52:58,911 INFO L129 PetriNetUnfolder]: 4/36 cut-off events. [2021-03-25 14:52:58,911 INFO L130 PetriNetUnfolder]: For 90/108 co-relation queries the response was YES. [2021-03-25 14:52:58,911 INFO L84 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 36 events. 4/36 cut-off events. For 90/108 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 90 event pairs, 2 based on Foata normal form. 1/35 useless extension candidates. Maximal degree in co-relation 78. Up to 13 conditions per place. [2021-03-25 14:52:58,912 INFO L132 encePairwiseOnDemand]: 113/116 looper letters, 1 selfloop transitions, 2 changer transitions 0/21 dead transitions. [2021-03-25 14:52:58,912 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 21 transitions, 89 flow [2021-03-25 14:52:58,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 14:52:58,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 14:52:58,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 304 transitions. [2021-03-25 14:52:58,914 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8735632183908046 [2021-03-25 14:52:58,914 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 304 transitions. [2021-03-25 14:52:58,914 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 304 transitions. [2021-03-25 14:52:58,914 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:52:58,914 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 304 transitions. [2021-03-25 14:52:58,915 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:52:58,916 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:52:58,916 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:52:58,917 INFO L185 Difference]: Start difference. First operand has 31 places, 21 transitions, 83 flow. Second operand 3 states and 304 transitions. [2021-03-25 14:52:58,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 21 transitions, 89 flow [2021-03-25 14:52:58,918 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 21 transitions, 84 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-03-25 14:52:58,918 INFO L241 Difference]: Finished difference. Result has 33 places, 21 transitions, 86 flow [2021-03-25 14:52:58,918 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=86, PETRI_PLACES=33, PETRI_TRANSITIONS=21} [2021-03-25 14:52:58,918 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 1 predicate places. [2021-03-25 14:52:58,919 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:52:58,919 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 33 places, 21 transitions, 86 flow [2021-03-25 14:52:58,919 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 33 places, 21 transitions, 86 flow [2021-03-25 14:52:58,919 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 33 places, 21 transitions, 86 flow [2021-03-25 14:52:58,924 INFO L129 PetriNetUnfolder]: 4/36 cut-off events. [2021-03-25 14:52:58,925 INFO L130 PetriNetUnfolder]: For 42/50 co-relation queries the response was YES. [2021-03-25 14:52:58,925 INFO L84 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 36 events. 4/36 cut-off events. For 42/50 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 91 event pairs, 2 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 77. Up to 13 conditions per place. [2021-03-25 14:52:58,926 INFO L142 LiptonReduction]: Number of co-enabled transitions 152 [2021-03-25 14:52:58,927 INFO L154 LiptonReduction]: Checked pairs total: 91 [2021-03-25 14:52:58,927 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:52:58,927 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8 [2021-03-25 14:52:58,928 INFO L480 AbstractCegarLoop]: Abstraction has has 33 places, 21 transitions, 86 flow [2021-03-25 14:52:58,929 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:52:58,929 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:52:58,929 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:52:58,929 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-25 14:52:58,929 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:52:58,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:52:58,930 INFO L82 PathProgramCache]: Analyzing trace with hash 1407982033, now seen corresponding path program 1 times [2021-03-25 14:52:58,930 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:52:58,930 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270708848] [2021-03-25 14:52:58,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:52:58,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:52:58,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:52:58,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:52:58,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:52:58,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:52:58,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:52:58,969 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270708848] [2021-03-25 14:52:58,969 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:52:58,969 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 14:52:58,969 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66579746] [2021-03-25 14:52:58,970 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 14:52:58,970 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:52:58,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 14:52:58,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 14:52:58,972 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 116 [2021-03-25 14:52:58,972 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 21 transitions, 86 flow. Second operand has 4 states, 4 states have (on average 96.75) internal successors, (387), 4 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:52:58,972 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:52:58,973 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 116 [2021-03-25 14:52:58,973 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:52:59,008 INFO L129 PetriNetUnfolder]: 5/49 cut-off events. [2021-03-25 14:52:59,008 INFO L130 PetriNetUnfolder]: For 206/225 co-relation queries the response was YES. [2021-03-25 14:52:59,009 INFO L84 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 49 events. 5/49 cut-off events. For 206/225 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 155 event pairs, 2 based on Foata normal form. 6/54 useless extension candidates. Maximal degree in co-relation 110. Up to 17 conditions per place. [2021-03-25 14:52:59,009 INFO L132 encePairwiseOnDemand]: 112/116 looper letters, 1 selfloop transitions, 3 changer transitions 1/22 dead transitions. [2021-03-25 14:52:59,009 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 22 transitions, 101 flow [2021-03-25 14:52:59,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 14:52:59,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 14:52:59,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 391 transitions. [2021-03-25 14:52:59,016 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8426724137931034 [2021-03-25 14:52:59,016 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 391 transitions. [2021-03-25 14:52:59,016 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 391 transitions. [2021-03-25 14:52:59,016 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:52:59,017 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 391 transitions. [2021-03-25 14:52:59,018 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 97.75) internal successors, (391), 4 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:52:59,019 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 116.0) internal successors, (580), 5 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:52:59,019 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 116.0) internal successors, (580), 5 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:52:59,019 INFO L185 Difference]: Start difference. First operand has 33 places, 21 transitions, 86 flow. Second operand 4 states and 391 transitions. [2021-03-25 14:52:59,019 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 22 transitions, 101 flow [2021-03-25 14:52:59,020 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 22 transitions, 95 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 14:52:59,021 INFO L241 Difference]: Finished difference. Result has 36 places, 21 transitions, 96 flow [2021-03-25 14:52:59,021 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=96, PETRI_PLACES=36, PETRI_TRANSITIONS=21} [2021-03-25 14:52:59,021 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 4 predicate places. [2021-03-25 14:52:59,021 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:52:59,022 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 36 places, 21 transitions, 96 flow [2021-03-25 14:52:59,022 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 36 places, 21 transitions, 96 flow [2021-03-25 14:52:59,022 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 36 places, 21 transitions, 96 flow [2021-03-25 14:52:59,034 INFO L129 PetriNetUnfolder]: 4/39 cut-off events. [2021-03-25 14:52:59,034 INFO L130 PetriNetUnfolder]: For 76/78 co-relation queries the response was YES. [2021-03-25 14:52:59,036 INFO L84 FinitePrefix]: Finished finitePrefix Result has 114 conditions, 39 events. 4/39 cut-off events. For 76/78 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 94 event pairs, 2 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 99. Up to 14 conditions per place. [2021-03-25 14:52:59,039 INFO L142 LiptonReduction]: Number of co-enabled transitions 118 [2021-03-25 14:52:59,113 INFO L154 LiptonReduction]: Checked pairs total: 97 [2021-03-25 14:52:59,114 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 14:52:59,114 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 93 [2021-03-25 14:52:59,115 INFO L480 AbstractCegarLoop]: Abstraction has has 35 places, 20 transitions, 102 flow [2021-03-25 14:52:59,118 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 96.75) internal successors, (387), 4 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:52:59,118 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:52:59,118 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:52:59,118 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-25 14:52:59,118 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:52:59,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:52:59,119 INFO L82 PathProgramCache]: Analyzing trace with hash 698899575, now seen corresponding path program 1 times [2021-03-25 14:52:59,119 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:52:59,119 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389760340] [2021-03-25 14:52:59,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:52:59,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:52:59,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:52:59,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:52:59,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:52:59,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 14:52:59,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:52:59,162 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389760340] [2021-03-25 14:52:59,162 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:52:59,162 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 14:52:59,162 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001704373] [2021-03-25 14:52:59,162 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 14:52:59,162 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:52:59,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 14:52:59,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 14:52:59,164 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 119 [2021-03-25 14:52:59,164 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 20 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:52:59,164 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:52:59,164 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 119 [2021-03-25 14:52:59,164 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:52:59,195 INFO L129 PetriNetUnfolder]: 40/111 cut-off events. [2021-03-25 14:52:59,196 INFO L130 PetriNetUnfolder]: For 228/239 co-relation queries the response was YES. [2021-03-25 14:52:59,196 INFO L84 FinitePrefix]: Finished finitePrefix Result has 323 conditions, 111 events. 40/111 cut-off events. For 228/239 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 491 event pairs, 19 based on Foata normal form. 1/101 useless extension candidates. Maximal degree in co-relation 306. Up to 70 conditions per place. [2021-03-25 14:52:59,197 INFO L132 encePairwiseOnDemand]: 114/119 looper letters, 4 selfloop transitions, 4 changer transitions 0/23 dead transitions. [2021-03-25 14:52:59,197 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 23 transitions, 124 flow [2021-03-25 14:52:59,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 14:52:59,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 14:52:59,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 306 transitions. [2021-03-25 14:52:59,198 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8571428571428571 [2021-03-25 14:52:59,198 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 306 transitions. [2021-03-25 14:52:59,199 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 306 transitions. [2021-03-25 14:52:59,199 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:52:59,199 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 306 transitions. [2021-03-25 14:52:59,200 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:52:59,201 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:52:59,201 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:52:59,201 INFO L185 Difference]: Start difference. First operand has 35 places, 20 transitions, 102 flow. Second operand 3 states and 306 transitions. [2021-03-25 14:52:59,201 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 23 transitions, 124 flow [2021-03-25 14:52:59,202 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 23 transitions, 107 flow, removed 2 selfloop flow, removed 4 redundant places. [2021-03-25 14:52:59,203 INFO L241 Difference]: Finished difference. Result has 34 places, 23 transitions, 111 flow [2021-03-25 14:52:59,203 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=85, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=111, PETRI_PLACES=34, PETRI_TRANSITIONS=23} [2021-03-25 14:52:59,203 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 2 predicate places. [2021-03-25 14:52:59,204 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:52:59,204 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 34 places, 23 transitions, 111 flow [2021-03-25 14:52:59,204 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 34 places, 23 transitions, 111 flow [2021-03-25 14:52:59,204 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 34 places, 23 transitions, 111 flow [2021-03-25 14:52:59,213 INFO L129 PetriNetUnfolder]: 40/111 cut-off events. [2021-03-25 14:52:59,214 INFO L130 PetriNetUnfolder]: For 98/105 co-relation queries the response was YES. [2021-03-25 14:52:59,214 INFO L84 FinitePrefix]: Finished finitePrefix Result has 291 conditions, 111 events. 40/111 cut-off events. For 98/105 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 492 event pairs, 19 based on Foata normal form. 0/98 useless extension candidates. Maximal degree in co-relation 277. Up to 70 conditions per place. [2021-03-25 14:52:59,215 INFO L142 LiptonReduction]: Number of co-enabled transitions 114 [2021-03-25 14:52:59,217 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 14:52:59,217 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:52:59,217 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 13 [2021-03-25 14:52:59,218 INFO L480 AbstractCegarLoop]: Abstraction has has 34 places, 23 transitions, 111 flow [2021-03-25 14:52:59,218 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:52:59,218 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:52:59,218 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:52:59,218 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-25 14:52:59,219 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:52:59,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:52:59,219 INFO L82 PathProgramCache]: Analyzing trace with hash 53233878, now seen corresponding path program 1 times [2021-03-25 14:52:59,219 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:52:59,219 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431856964] [2021-03-25 14:52:59,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:52:59,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:52:59,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:52:59,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 14:52:59,259 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-25 14:52:59,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 14:52:59,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:52:59,269 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431856964] [2021-03-25 14:52:59,270 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:52:59,270 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 14:52:59,270 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147068281] [2021-03-25 14:52:59,271 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 14:52:59,271 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:52:59,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 14:52:59,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 14:52:59,272 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 119 [2021-03-25 14:52:59,272 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 23 transitions, 111 flow. Second operand has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:52:59,272 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:52:59,272 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 119 [2021-03-25 14:52:59,272 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:52:59,302 INFO L129 PetriNetUnfolder]: 48/133 cut-off events. [2021-03-25 14:52:59,302 INFO L130 PetriNetUnfolder]: For 197/240 co-relation queries the response was YES. [2021-03-25 14:52:59,302 INFO L84 FinitePrefix]: Finished finitePrefix Result has 356 conditions, 133 events. 48/133 cut-off events. For 197/240 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 637 event pairs, 17 based on Foata normal form. 15/137 useless extension candidates. Maximal degree in co-relation 340. Up to 92 conditions per place. [2021-03-25 14:52:59,303 INFO L132 encePairwiseOnDemand]: 110/119 looper letters, 6 selfloop transitions, 10 changer transitions 0/28 dead transitions. [2021-03-25 14:52:59,303 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 28 transitions, 166 flow [2021-03-25 14:52:59,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 14:52:59,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 14:52:59,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 282 transitions. [2021-03-25 14:52:59,305 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7899159663865546 [2021-03-25 14:52:59,305 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 282 transitions. [2021-03-25 14:52:59,305 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 282 transitions. [2021-03-25 14:52:59,305 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:52:59,305 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 282 transitions. [2021-03-25 14:52:59,306 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:52:59,307 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:52:59,307 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:52:59,307 INFO L185 Difference]: Start difference. First operand has 34 places, 23 transitions, 111 flow. Second operand 3 states and 282 transitions. [2021-03-25 14:52:59,307 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 28 transitions, 166 flow [2021-03-25 14:52:59,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 28 transitions, 162 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 14:52:59,309 INFO L241 Difference]: Finished difference. Result has 37 places, 28 transitions, 182 flow [2021-03-25 14:52:59,309 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=107, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=182, PETRI_PLACES=37, PETRI_TRANSITIONS=28} [2021-03-25 14:52:59,310 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 5 predicate places. [2021-03-25 14:52:59,310 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:52:59,310 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 28 transitions, 182 flow [2021-03-25 14:52:59,310 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 28 transitions, 182 flow [2021-03-25 14:52:59,310 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 37 places, 28 transitions, 182 flow [2021-03-25 14:52:59,320 INFO L129 PetriNetUnfolder]: 48/135 cut-off events. [2021-03-25 14:52:59,320 INFO L130 PetriNetUnfolder]: For 151/189 co-relation queries the response was YES. [2021-03-25 14:52:59,321 INFO L84 FinitePrefix]: Finished finitePrefix Result has 377 conditions, 135 events. 48/135 cut-off events. For 151/189 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 619 event pairs, 17 based on Foata normal form. 2/130 useless extension candidates. Maximal degree in co-relation 360. Up to 92 conditions per place. [2021-03-25 14:52:59,322 INFO L142 LiptonReduction]: Number of co-enabled transitions 144 [2021-03-25 14:52:59,323 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 14:52:59,324 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:52:59,324 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14 [2021-03-25 14:52:59,324 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 28 transitions, 182 flow [2021-03-25 14:52:59,325 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:52:59,325 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:52:59,325 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:52:59,325 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-25 14:52:59,325 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:52:59,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:52:59,325 INFO L82 PathProgramCache]: Analyzing trace with hash 687674862, now seen corresponding path program 1 times [2021-03-25 14:52:59,325 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:52:59,326 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151294566] [2021-03-25 14:52:59,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:52:59,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:52:59,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:52:59,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:52:59,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:52:59,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:52:59,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:52:59,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 14:52:59,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:52:59,357 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151294566] [2021-03-25 14:52:59,357 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:52:59,357 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 14:52:59,357 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601725551] [2021-03-25 14:52:59,357 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 14:52:59,357 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:52:59,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 14:52:59,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-25 14:52:59,359 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 119 [2021-03-25 14:52:59,359 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 28 transitions, 182 flow. Second operand has 4 states, 4 states have (on average 99.75) internal successors, (399), 4 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:52:59,359 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:52:59,359 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 119 [2021-03-25 14:52:59,359 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:52:59,380 INFO L129 PetriNetUnfolder]: 24/84 cut-off events. [2021-03-25 14:52:59,381 INFO L130 PetriNetUnfolder]: For 92/153 co-relation queries the response was YES. [2021-03-25 14:52:59,381 INFO L84 FinitePrefix]: Finished finitePrefix Result has 292 conditions, 84 events. 24/84 cut-off events. For 92/153 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 314 event pairs, 2 based on Foata normal form. 27/108 useless extension candidates. Maximal degree in co-relation 273. Up to 54 conditions per place. [2021-03-25 14:52:59,381 INFO L132 encePairwiseOnDemand]: 114/119 looper letters, 3 selfloop transitions, 7 changer transitions 1/31 dead transitions. [2021-03-25 14:52:59,382 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 31 transitions, 216 flow [2021-03-25 14:52:59,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 14:52:59,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 14:52:59,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 408 transitions. [2021-03-25 14:52:59,383 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8571428571428571 [2021-03-25 14:52:59,383 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 408 transitions. [2021-03-25 14:52:59,383 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 408 transitions. [2021-03-25 14:52:59,383 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:52:59,384 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 408 transitions. [2021-03-25 14:52:59,384 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 102.0) internal successors, (408), 4 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:52:59,385 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:52:59,386 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:52:59,386 INFO L185 Difference]: Start difference. First operand has 37 places, 28 transitions, 182 flow. Second operand 4 states and 408 transitions. [2021-03-25 14:52:59,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 31 transitions, 216 flow [2021-03-25 14:52:59,387 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 31 transitions, 196 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 14:52:59,388 INFO L241 Difference]: Finished difference. Result has 39 places, 30 transitions, 196 flow [2021-03-25 14:52:59,388 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=196, PETRI_PLACES=39, PETRI_TRANSITIONS=30} [2021-03-25 14:52:59,388 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 7 predicate places. [2021-03-25 14:52:59,388 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:52:59,388 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 30 transitions, 196 flow [2021-03-25 14:52:59,389 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 30 transitions, 196 flow [2021-03-25 14:52:59,389 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 39 places, 30 transitions, 196 flow [2021-03-25 14:52:59,395 INFO L129 PetriNetUnfolder]: 20/80 cut-off events. [2021-03-25 14:52:59,396 INFO L130 PetriNetUnfolder]: For 88/123 co-relation queries the response was YES. [2021-03-25 14:52:59,396 INFO L84 FinitePrefix]: Finished finitePrefix Result has 282 conditions, 80 events. 20/80 cut-off events. For 88/123 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 309 event pairs, 2 based on Foata normal form. 5/83 useless extension candidates. Maximal degree in co-relation 264. Up to 50 conditions per place. [2021-03-25 14:52:59,397 INFO L142 LiptonReduction]: Number of co-enabled transitions 132 [2021-03-25 14:52:59,467 INFO L154 LiptonReduction]: Checked pairs total: 7 [2021-03-25 14:52:59,467 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 14:52:59,468 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 80 [2021-03-25 14:52:59,468 INFO L480 AbstractCegarLoop]: Abstraction has has 38 places, 29 transitions, 194 flow [2021-03-25 14:52:59,468 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 99.75) internal successors, (399), 4 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:52:59,468 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:52:59,469 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:52:59,469 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-25 14:52:59,469 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:52:59,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:52:59,469 INFO L82 PathProgramCache]: Analyzing trace with hash -404218817, now seen corresponding path program 1 times [2021-03-25 14:52:59,469 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:52:59,469 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965817053] [2021-03-25 14:52:59,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:52:59,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:52:59,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:52:59,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:52:59,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:52:59,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:52:59,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:52:59,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:52:59,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:52:59,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 14:52:59,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:52:59,504 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965817053] [2021-03-25 14:52:59,504 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:52:59,504 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 14:52:59,504 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141819997] [2021-03-25 14:52:59,505 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 14:52:59,505 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:52:59,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 14:52:59,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-03-25 14:52:59,506 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 120 [2021-03-25 14:52:59,507 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 29 transitions, 194 flow. Second operand has 5 states, 5 states have (on average 99.8) internal successors, (499), 5 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:52:59,507 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:52:59,507 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 120 [2021-03-25 14:52:59,507 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:52:59,532 INFO L129 PetriNetUnfolder]: 16/59 cut-off events. [2021-03-25 14:52:59,532 INFO L130 PetriNetUnfolder]: For 239/351 co-relation queries the response was YES. [2021-03-25 14:52:59,533 INFO L84 FinitePrefix]: Finished finitePrefix Result has 246 conditions, 59 events. 16/59 cut-off events. For 239/351 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 194 event pairs, 0 based on Foata normal form. 39/95 useless extension candidates. Maximal degree in co-relation 226. Up to 33 conditions per place. [2021-03-25 14:52:59,533 INFO L132 encePairwiseOnDemand]: 115/120 looper letters, 0 selfloop transitions, 0 changer transitions 28/28 dead transitions. [2021-03-25 14:52:59,533 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 28 transitions, 196 flow [2021-03-25 14:52:59,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 14:52:59,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 14:52:59,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 505 transitions. [2021-03-25 14:52:59,535 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8416666666666667 [2021-03-25 14:52:59,535 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 505 transitions. [2021-03-25 14:52:59,535 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 505 transitions. [2021-03-25 14:52:59,535 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:52:59,536 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 505 transitions. [2021-03-25 14:52:59,537 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:52:59,538 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 120.0) internal successors, (720), 6 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:52:59,538 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 120.0) internal successors, (720), 6 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:52:59,538 INFO L185 Difference]: Start difference. First operand has 38 places, 29 transitions, 194 flow. Second operand 5 states and 505 transitions. [2021-03-25 14:52:59,538 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 28 transitions, 196 flow [2021-03-25 14:52:59,540 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 28 transitions, 174 flow, removed 3 selfloop flow, removed 4 redundant places. [2021-03-25 14:52:59,540 INFO L241 Difference]: Finished difference. Result has 37 places, 0 transitions, 0 flow [2021-03-25 14:52:59,540 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=37, PETRI_TRANSITIONS=0} [2021-03-25 14:52:59,540 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 5 predicate places. [2021-03-25 14:52:59,540 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:52:59,540 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 0 transitions, 0 flow [2021-03-25 14:52:59,541 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 0 transitions, 0 flow [2021-03-25 14:52:59,541 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-25 14:52:59,541 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-25 14:52:59,541 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 14:52:59,541 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-03-25 14:52:59,541 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-25 14:52:59,541 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 14:52:59,541 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:52:59,542 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-03-25 14:52:59,542 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-25 14:52:59,542 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 99.8) internal successors, (499), 5 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:52:59,542 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-25 14:52:59,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.03 02:52:59 BasicIcfg [2021-03-25 14:52:59,546 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-25 14:52:59,546 INFO L168 Benchmark]: Toolchain (without parser) took 4490.92 ms. Allocated memory was 255.9 MB in the beginning and 448.8 MB in the end (delta: 192.9 MB). Free memory was 233.4 MB in the beginning and 244.3 MB in the end (delta: -10.9 MB). Peak memory consumption was 183.1 MB. Max. memory is 16.0 GB. [2021-03-25 14:52:59,547 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 14:52:59,547 INFO L168 Benchmark]: CACSL2BoogieTranslator took 479.42 ms. Allocated memory was 255.9 MB in the beginning and 367.0 MB in the end (delta: 111.1 MB). Free memory was 233.0 MB in the beginning and 330.5 MB in the end (delta: -97.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. [2021-03-25 14:52:59,547 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.52 ms. Allocated memory is still 367.0 MB. Free memory was 330.5 MB in the beginning and 328.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 14:52:59,547 INFO L168 Benchmark]: Boogie Preprocessor took 30.30 ms. Allocated memory is still 367.0 MB. Free memory was 328.4 MB in the beginning and 326.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 14:52:59,548 INFO L168 Benchmark]: RCFGBuilder took 388.03 ms. Allocated memory is still 367.0 MB. Free memory was 326.8 MB in the beginning and 304.8 MB in the end (delta: 22.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2021-03-25 14:52:59,548 INFO L168 Benchmark]: TraceAbstraction took 3519.06 ms. Allocated memory was 367.0 MB in the beginning and 448.8 MB in the end (delta: 81.8 MB). Free memory was 304.3 MB in the beginning and 244.3 MB in the end (delta: 59.9 MB). Peak memory consumption was 144.8 MB. Max. memory is 16.0 GB. [2021-03-25 14:52:59,549 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 479.42 ms. Allocated memory was 255.9 MB in the beginning and 367.0 MB in the end (delta: 111.1 MB). Free memory was 233.0 MB in the beginning and 330.5 MB in the end (delta: -97.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 66.52 ms. Allocated memory is still 367.0 MB. Free memory was 330.5 MB in the beginning and 328.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 30.30 ms. Allocated memory is still 367.0 MB. Free memory was 328.4 MB in the beginning and 326.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 388.03 ms. Allocated memory is still 367.0 MB. Free memory was 326.8 MB in the beginning and 304.8 MB in the end (delta: 22.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3519.06 ms. Allocated memory was 367.0 MB in the beginning and 448.8 MB in the end (delta: 81.8 MB). Free memory was 304.3 MB in the beginning and 244.3 MB in the end (delta: 59.9 MB). Peak memory consumption was 144.8 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1035.0ms, 68 PlacesBefore, 32 PlacesAfterwards, 59 TransitionsBefore, 22 TransitionsAfterwards, 864 CoEnabledTransitionPairs, 4 FixpointIterations, 14 TrivialSequentialCompositions, 22 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 37 TotalNumberOfCompositions, 996 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 540, positive: 507, positive conditional: 0, positive unconditional: 507, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 481, positive: 459, positive conditional: 0, positive unconditional: 459, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 481, positive: 459, positive conditional: 0, positive unconditional: 459, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 481, positive: 455, positive conditional: 0, positive unconditional: 455, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 26, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 83, positive: 17, positive conditional: 0, positive unconditional: 17, negative: 66, negative conditional: 0, negative unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 540, positive: 48, positive conditional: 0, positive unconditional: 48, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 481, unknown conditional: 0, unknown unconditional: 481] , Statistics on independence cache: Total cache size (in pairs): 34, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 551.0ms, 32 PlacesBefore, 28 PlacesAfterwards, 24 TransitionsBefore, 20 TransitionsAfterwards, 188 CoEnabledTransitionPairs, 3 FixpointIterations, 2 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 387 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 186, positive: 155, positive conditional: 0, positive unconditional: 155, negative: 31, negative conditional: 0, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 52, positive: 43, positive conditional: 0, positive unconditional: 43, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 52, positive: 43, positive conditional: 0, positive unconditional: 43, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 52, positive: 41, positive conditional: 0, positive unconditional: 41, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 11, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 39, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 186, positive: 112, positive conditional: 0, positive unconditional: 112, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 52, unknown conditional: 0, unknown unconditional: 52] , Statistics on independence cache: Total cache size (in pairs): 56, Positive cache size: 47, Positive conditional cache size: 0, Positive unconditional cache size: 47, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 490.3ms, 30 PlacesBefore, 29 PlacesAfterwards, 22 TransitionsBefore, 21 TransitionsAfterwards, 154 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 142 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 75, positive: 63, positive conditional: 0, positive unconditional: 63, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 10, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 75, positive: 60, positive conditional: 0, positive unconditional: 60, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 60, Positive cache size: 50, Positive conditional cache size: 0, Positive unconditional cache size: 50, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.1ms, 31 PlacesBefore, 31 PlacesAfterwards, 21 TransitionsBefore, 21 TransitionsAfterwards, 154 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 95 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 50, positive: 42, positive conditional: 0, positive unconditional: 42, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 50, positive: 38, positive conditional: 0, positive unconditional: 38, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 64, Positive cache size: 54, Positive conditional cache size: 0, Positive unconditional cache size: 54, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.3ms, 33 PlacesBefore, 33 PlacesAfterwards, 21 TransitionsBefore, 21 TransitionsAfterwards, 152 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 91 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 43, positive: 35, positive conditional: 0, positive unconditional: 35, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 43, positive: 35, positive conditional: 0, positive unconditional: 35, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 64, Positive cache size: 54, Positive conditional cache size: 0, Positive unconditional cache size: 54, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 91.7ms, 36 PlacesBefore, 35 PlacesAfterwards, 21 TransitionsBefore, 20 TransitionsAfterwards, 118 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 97 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 55, positive: 47, positive conditional: 0, positive unconditional: 47, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 55, positive: 42, positive conditional: 0, positive unconditional: 42, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 5, unknown conditional: 0, unknown unconditional: 5] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 41, Positive conditional cache size: 0, Positive unconditional cache size: 41, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.8ms, 34 PlacesBefore, 34 PlacesAfterwards, 23 TransitionsBefore, 23 TransitionsAfterwards, 114 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 41, Positive conditional cache size: 0, Positive unconditional cache size: 41, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.5ms, 37 PlacesBefore, 37 PlacesAfterwards, 28 TransitionsBefore, 28 TransitionsAfterwards, 144 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 41, Positive conditional cache size: 0, Positive unconditional cache size: 41, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 78.8ms, 39 PlacesBefore, 38 PlacesAfterwards, 30 TransitionsBefore, 29 TransitionsAfterwards, 132 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 7 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 7, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 7, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 32, Positive cache size: 32, Positive conditional cache size: 0, Positive unconditional cache size: 32, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.7ms, 37 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 32, Positive cache size: 32, Positive conditional cache size: 0, Positive unconditional cache size: 32, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 73 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 7.1ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 3402.2ms, OverallIterations: 9, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 327.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1139.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 40 SDtfs, 1 SDslu, 1 SDs, 0 SdLazy, 58 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 62.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 44.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=196occurred in iteration=8, InterpolantAutomatonStates: 31, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 20.3ms SsaConstructionTime, 163.3ms SatisfiabilityAnalysisTime, 298.6ms InterpolantComputationTime, 107 NumberOfCodeBlocks, 107 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 98 ConstructedInterpolants, 0 QuantifiedInterpolants, 268 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...